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3x-x=-3+15
2x=12/:2
x=6
b)2(x-1)-3(x+1)=-8
2x-2-3x-3=-8
2x-3x=-8+2+3
-x=-3/:(-1)
x=3
3x - x = -3 + 15
2x = 12
x = 6
b) 2(x - 1) - 3(x + 1) = -8
2x - 2 - 3x - 3 = -8
-x = -8 + 5
-x = -3
x = 3
3x-15 =x-3
2x=12
x=6
b)
2x-2 -3x -3 = -8
-x= -3
x= 3